Errors for apps that use " or '

Apps that use `"` or `'` in the title crash the program badly. Example are `Don't Starve` and Sid Meier's Civilization`. This is the error:

``` python
Traceback (most recent call last):
  File "./textapplauncher.py", line 57, in <module>
    from checkinput import checkinput
  File "/home/josh/pyappsch/checkinput.py", line 1015
    print('Program name: Sid Meier's Civilization V')
```
